654130136723581 has 16 divisors (see below), whose sum is σ = 759834547655040. Its totient is φ = 551490083484480.

The previous prime is 654130136723551. The next prime is 654130136723597. The reversal of 654130136723581 is 185327631031456.

It is not a de Polignac number, because 654130136723581 - 2⁵ = 654130136723549 is a prime.

It is a super-2 number, since 2×654130136723581² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (654130136723551) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 194336730 + ... + 197674036.

It is an arithmetic number, because the mean of its divisors is an integer number (47489659228440).

Almost surely, 2^{654130136723581} is an apocalyptic number.

654130136723581 is a gapful number since it is divisible by the number (61) formed by its first and last digit.

It is an amenable number.

654130136723581 is a deficient number, since it is larger than the sum of its proper divisors (105704410931459).

654130136723581 is a wasteful number, since it uses less digits than its factorization.

654130136723581 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3796404.

The product of its (nonzero) digits is 10886400, while the sum is 55.

The spelling of 654130136723581 in words is "six hundred fifty-four trillion, one hundred thirty billion, one hundred thirty-six million, seven hundred twenty-three thousand, five hundred eighty-one".